X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=man%2Fintegritytab.xml;h=ebffeeb25e7bfced9afb64ef41d8a2284e5a976d;hb=13a69c120bc584e90f863f821710b3b5294cd206;hp=44da039ddecf9dce658a9d5c8ec9612b5e2c00a1;hpb=29084afd916a2f23b76d72fb0ae21bf2a9fc56d4;p=thirdparty%2Fsystemd.git diff --git a/man/integritytab.xml b/man/integritytab.xml index 44da039ddec..ebffeeb25e7 100644 --- a/man/integritytab.xml +++ b/man/integritytab.xml @@ -69,18 +69,25 @@ Allow the use of discard (TRIM) requests for the device. This option is available since the Linux kernel version 5.7. - + + + - + - Disable the journal. Corresponds to the "direct writes" mode documented in + Enable journaled, bitmapped or direct (passthrough) mode. Journaled mode is the default when this option is not specified. + It provides safety against crashes, but can be slow because all data has to be written twice. + Bitmap mode is more efficient since it requires only a single write, but it is less reliable because if data corruption happens when the machine crashes, it may not be detected. + Direct mode disables the journal and the bitmap. Corresponds to the "direct writes" mode documented in the dm-integrity documentation. Note that without a journal, if there is a crash, it is possible that the integrity tags and data will not match. If used, the journal-* options below will have no effect if passed. - + + + @@ -89,7 +96,9 @@ Journal watermark in percent. When the journal percentage exceeds this watermark, the journal flush will be started. Setting a value of "0%" uses default value. - + + + @@ -98,7 +107,9 @@ Commit time in milliseconds. When this time passes (and no explicit flush operation was issued), the journal is written. Setting a value of zero uses default value. - + + + @@ -108,7 +119,9 @@ Specify a separate block device that contains existing data. The second field specified in the integritytab for block device then will contain calculated integrity tags and journal for data-device, but not the end user data. - + + + @@ -116,7 +129,9 @@ The algorithm used for integrity checking. The default is crc32c. Must match option used during format. - + + + @@ -161,12 +176,12 @@ data PARTUUID=5d4b1808-be76-774d-88af-03c4c3a41761 - allow-discards See Also - - systemd1, - systemd-integritysetup@.service8, - systemd-integritysetup-generator8, - integritysetup8, - + + systemd1 + systemd-integritysetup@.service8 + systemd-integritysetup-generator8 + integritysetup8 +